#!/usr/bin/env bash
#
# Usage: ./push-all <registry> <image-prefix> <image-tag>
set -euo pipefail

registry=${1:-docker.io}
image_prefix=${2:-nixpkgs}
image_tag=${3:-latest}
system_name=${NIX_SYSTEM_NAME:-x86_64-linux}

releases_json=$(nix-instantiate --strict --argstr system "$system_name" --eval --json)

echo "=== Pushing images to $registry"

for attr in $(echo "$releases_json" | jq -r "keys[]") ; do
  file=$(echo "$releases_json" | jq -r ".\"$attr\"")
  src=docker-archive://$file
  dst=docker://$registry/$image_prefix/$attr:${image_tag}-${system_name}
  echo "--- attr=$attr src=$src dst=$dst"
  skopeo copy --insecure-policy "$src" "$dst"
done

echo OK